A Statistics-Based Data Placement Strategy for Hybrid Storage

Yuan Hua Yang; Xian Bin  Xu; Shui Bing He; Yu Hua Wen

doi:10.4028/www.scientific.net/AMM.644-650.1620

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650A Statistics-Based Data Placement Strategy for...

A Statistics-Based Data Placement Strategy for Hybrid Storage

Abstract:

Although hard disk drives have been popular over several decades, there still exists the deficiency because of their slow speeds and high power consumptions. By contrast, flash-based solid state disks exhibit good performance and low power consumption. However, the limited lifetimes become a fatal flaw of solid state disks. In order to take full advantage of hard disk drives and solid state disks, we design a hybrid storage system to make them work in a complementary manner. Further, we propose a data placement scheme for this system to determine the data placement on the underlying solid state disks or hard disk drives based on the data access statistics. Experiment results show that the lifetime of solid state disks and the response time of the system can be significantly improved compared with the alone storage media.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

1620-1624

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.1620

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Online since:

September 2014

Authors:

Yuan Hua Yang*, Xian Bin Xu, Shui Bing He, Yu Hua Wen

Keywords:

Data Placement, Hard Disk Drive, Hybrid Storage, Solid State Disk

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